diff --git a/plat/hisilicon/hikey960/platform.mk b/plat/hisilicon/hikey960/platform.mk
index 8d1876f..cd06305 100644
--- a/plat/hisilicon/hikey960/platform.mk
+++ b/plat/hisilicon/hikey960/platform.mk
@@ -29,10 +29,10 @@
 # Add the build options to pack Trusted OS Extra1 and Trusted OS Extra2 images
 # in the FIP if the platform requires.
 ifneq ($(BL32_EXTRA1),)
-$(eval $(call TOOL_ADD_IMG,BL32_EXTRA1,--tos-fw-extra1))
+$(eval $(call TOOL_ADD_IMG,bl32_extra1,--tos-fw-extra1))
 endif
 ifneq ($(BL32_EXTRA2),)
-$(eval $(call TOOL_ADD_IMG,BL32_EXTRA2,--tos-fw-extra2))
+$(eval $(call TOOL_ADD_IMG,bl32_extra2,--tos-fw-extra2))
 endif
 
 ENABLE_PLAT_COMPAT	:=	0